Tool-sharpening device



' (No Model.)

- G. A. KEIST. 4

TOOL SHARPENING DEVICE.

No. 478,608. Patented July 12, 1892..

*- STATES PATENT. OF ICE.

' GEORGE A. KEIST, OF AUBURN, MAINE.

TOOIL-SHARPIEINING DEVICE.

SPECIFICATION forming part of Letters Patent No. 478,608, dated July 12,1892. Applioation filed February 10, 1892. Serial No. 421,011. (NomodeL) I To all whom-it may concern: Be it known that LGEORGE A. KEIST,a citizen of the United States, residing at Auburn, in the county ofAndroscoggin and State of Maine, have invented certain new and usefulImprovements in Tool-Sharpening Devices; and I; do herebydeclare thefollowing to be a fulhgc'lear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same. I This invention is'an imprdvement intoolsharpeners and holders therefor. I The objects of thisinvention areto provide a sharpening device for tools by which edged tools may begiven various degrees of sharpness ranging from the edge required forcutting meat or the like to the edge of a razor; furthermore, to providea sharpening device for tools the faces of which may be brought intoconvenient operative position with ease and held there securely;furthermore, to provide a sharpening device wherein the holder of thesharpening faces or surfaces will be sim'ple'in structure, compact ofarrangement, and neat in appearance.

The invention has for further objects the production of a combined toolsharpener and holder which will be comparatively inex ensive tomanufacture, easy to use, andattract ive in appearance.

With these objects in view the invention re- I sides in the' variousnovel features of detail I and in the combination of parts hereinafter"fully described, and particular y pointed out in the claims. I I

In the accompanying drawings, formlng I part of this specification, inwhich like letters of -reference' indicate'corresponding parts,

Figure 1 is a. perspective view of my device.

' Fig. 2 is a longitudinal section thereo f. Fig. 3 is a cross-sectionof a portion thereof, and

Fig. 4 shows in detail a portion of'the axis 0,

having secured toit the plate 0 and alsoshows the'thumb-piece c. I

In the drawings, A designates a platform or stand towhich the device issecured.

. B B indicate standards or endpieces suitablyjsecured' to thepIatfOrnriL A, which are provided for the pnrposeof: ra1s1ng theabrading or sharpening surfaces above the platand consists,

- ard 13.. The end 113.1 or bearing b form and which afford journals forthe axis of the combination of sharpening'surfaces.

O designates the sharpening device proper, in general terms, in an axismounted between the end pieces 13 B, a support surrounding or nearlysurrounding this axis and extending nearly the length between the twoend pieces, two sharpening-stones or abrading-surfaces arranged the oneabove and the other below the support upon the axis, aleather strap orband extending longitudinally around the support and the stones andserving to confine and hold the same in place and alsoto act as asharpening-surface, washers at either end, and suitable tightening andholding devices.

The platform A maybe of any suitable ma terial, and the standards B Bmay be either integral with the platform or may be secured thereto inany suitable or convenient way. 1

The platform is provided on its upper surface-with a'recess a, in whichmay be placed a box of grease or razor-paste for oiling the leather. v

' The standard or end piece B is provided near its top with a bearing bfor the axis or shaft of the portion 0, and above this bearing the saidend piece is provided with a tubular projection 12. -Tothe lower portionof this standard one end of a spring I) is secured in any suitablemanner, the other end of the spring being passed through the end of apin b5, which is held thereby within the tubular projection 1%, havingits inner endnormally projecting beyond the inner-side of thestandat-its upper end, the said journal being somewhat larger indiameter than the bearing 1) opposite to it. i

The sharpening device 0 consists of the hearing I) and by having itsother end provided with a screw-thread, on which the thumb-piece c issecured. The thumb=piece '0' serves two functio'nsz'first, to provide a'suitable journal for the bearing 6 and, second; to tighten and securethe stones in their places, as will be hereinafter described. Surpiecehas merely a jourv .9 axis c',.journaled in the two end pieces by havingone of its ends thrust through the I I I I Ice r0undin'g or-"rnearlysurrounding the axis c; is asupport c of woodor other suitable material,having for its object to provide a rest for the sharpening-stonesc oneither side, and also to hold in shape the band of leather 0 whether thestones be in position or whether they be removed therefrom. This support0 is, by preferencef fiat and reetangularin its outline; One end of thissupport has secured to it by means of glue, small brads, or the like oneend of the leather strap 0, which, passing around the edges of thesupport, has its other end lapped over, by preference having a slit inthe lapped end for the purpose of adj ustment and tightening the firstend and secured thereto by the following means: Fast upon the shaft oraxis 0, near the end which is jonrnaled in the standard B, is a plate 0providedwith holes or depressions c to re ceive the inner end of the pinb Upon the other threaded end ofthe axis is a loose plate or washer 0having an auxiliary washer c whereon the thumb-screw c is tightened, It

will readily be seen that by tighteningthe thumb-screw c the plate 0will press upon the leather band a and hold in place the stone a whichfits snugly within this band and rests upon the support 0 To remove thestones,it is only necessary,-of course, to loosen the thumb-screw c, andthereupon, the pressure upon the leather being relieved, the stones mayeasily be taken from their respective places. s

The spring-pressed pin b in combination with-the recessed plate forms'alocking device for holding any of the four surfaces of the sharpeningdevice uppermost at a time and restraining the same from turning at inopportune times when in use.

In using my device it will be seen thatit may often be convenient tohave upon one side a stone of coarse grain for taking the rough edgesfrom any edged tool and upon the other side a hone of finer stone, andalso to have be, by these means enabling the operator to obtain thehighest possible edge to any tool.

I make these tools for various uses, from the sharpening of axes andmeat-knives to the edging of the finest razors, and of course indesigning the device for these various purposes it is made of differentmaterials, of different sizes and strengths, andvaryingslightly inappearance and manufacture from the device shown in the drawings; but ofcourse no matter for what specific purpose the individual devices may bemade the general structures and the combinations of the elements arethose set forth herein.

Having thus fully described my invention, what I claim as new, anddesire tosecure by Letters Patent, is-

embracing the edges of stones and means, substantially such asdescribed, for tightening the leather upon the stones, thereby holdingthem in place, substantially as and for the purpose set forth.

2. In a tool sharpener, the combination, with a base, of standardssecured thereto, a shaft or axis journaled between the standards, a restplaced upon said shaft, a band of leather surrounding said rest, stonesadapted to fit within the edgesof the leather and upon the rest, andmeans, substantially such as described, for holding the leather and thestones in place, all substantially as and for the purpose set forth.

3. In a tool-sharpening device, the combination, with the standards BB', the standard B having the spring-pressed pin D of the shaft or axisa, mounted between these standards, a support 0 arranged upon the axis0, a band of leather a, surrounding the said support, a plate 0 securedto the axisc near one end thereof, the said plate having depressions toreceive the inner end of the pin b stones adapted to fit within theedges of the leather band, a plate or Washers", loose upon the axis o,and a screw for holding the leatherto the stones, all substantially asset forth.

4:. In a tool-sharpening device, the combi-- nation, with the holder 0,having an axis '0 and a plate 0 fast thereon, the said plate beingprovided with openings or recesses in the face of the plate, arranged ina circle about the axis 0, of a pin bimounted longitudinally in one ofthe supports for the holder, the said pin being normally pressed forwardby a spring b attached to the said support and engaging one of therecesses of the plate 0 all substantially as and for the purpose setforth.

5. In a tool-sharpening device, the combination, with the platform A andthe standards B B, the standard B having a tubular projection"b' at itsupper end andhaving a springpressed pin b adapted to move longitudinallywithin said tubular projection, of a shaft or axis 0, having one of itsends screw-threaded and having upon its other. end fast thereto theplate 0 provided with holes 0, a support or rest 0 arrangedlongitudinally upon the axis 0, a band of leather a, surrounding the

